Intel Core i9 9900X vs i7 10700K

We compared two desktop CPUs: the 3.5 GHz Intel Core i9 9900X with 10-cores against the 3.8 GHz i7 10700K with 8-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 10700K and 9900X
Advantages of Intel Core i9 9900X
  • Supports quad-channel memory
  • Has 2 more physical cores
  • Has 4 MB larger L3 cache size
Advantages of Intel Core i7 10700K
  • Newer - released 1-year and 7-months later
  • Consumes up to 24% less energy than the Core i9 9900X – 125 vs 165 Watt
  • 16% higher Turbo Boost frequency (5.1 GHz vs 4.4 GHz)
  • Includes an integrated GPU Intel UHD Graphics 630
  • More than 8° C higher critical temperature
  • 11% faster in a single-core Geekbench v5 test - 1292 vs 1168 points

Benchmarks

Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
1312
Cinebench R23 (Multi-Core)
14020
Passmark CPU (Single-Core)
3100
Passmark CPU (Multi-Core)
22010
Geekbench 5 (Single-Core)
1294
Geekbench 5 (Multi-Core)
10831
By purchasing through links on this site, we may receive a commission from Amazon. This does not affect our assessment methodology.

Specifications

Full technical specification of Intel Core i9 9900X and i7 10700K

General

Vendor Intel Intel
Released October 8, 2018 May 1, 2020
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Skylake Comet Lake-S
Model number i9-9900X i7-10700K
Socket LGA-2066 LGA-1200
Integrated GPU No UHD Graphics 630

Performance

Cores 10 8
Threads 20 16
Base Frequency 3.5 GHz 3.8 GHz
Turbo Boost Frequency 4.4 GHz 5.1 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 35x 38x
Bus Bandwidth 8 GT/s 8 GT/s
L1 Cache 64K (per core) 64K (per core)
L2 Cache 1MB (per core) 256K (per core)
L3 Cache 20MB (shared) 16MB (shared)
Unlocked Multiplier Yes Yes

Power

Fabrication process 14 nm 14 nm
TDP 165 W 125 W
Max. temperature 92°C 100°C

iGPU

Integrated Graphics - Intel UHD Graphics 630
GPU Base Clock - 350 MHz
GPU Boost Clock - 1200 MHz
Shading Units - 192
TMUs - 24
ROPs - 3
Execution Units - 24
TGP - 15 W
Max. Resolution - 4096x2304 - 60 Hz
iGPU FLOPS
0.38 TFLOPS

Memory support

Memory types DDR4-2666 DDR4-2933
Memory Size 128 GB 128 GB
Max. Memory Channels 4 2
Max. Memory Bandwidth - 45.8 GB/s
ECC Support No No

Misc

Official site Intel Core i9 9900X official page Intel Core i7 10700K official page
PCI Express Version 3.0 3.0
PCI Express Lanes 44 16
Extended instructions SSE4.1, SSE4.2, AVX-2, AVX-512 -

Cast your vote

Choose between two processors
2 (66.7%)
1 (33.3%)
Total votes: 3

Comments

So which CPU will you choose: Intel Core i7 10700K or i9 9900X?
Promotion